Error after update to Drupal 10.2 TypeError: Illegal offset type

I think this is not purely by updating Drupal core... Did you update the module itself also? As there were structural changes between 1.1.x and 1.2.x

Hi Tim
You are correct, module was updated from 1.1.1 to 1.2.0 in the process.

Ok that explains. Guess it is fixed in the new release. But that should be tested.

Tested with the latest release (1.2.2), can confirm that it is fixed.

Thanks for reporting back. Glad it is fixed.